Keeping Wi-Fi and remote signals alive once the router sits behind a TV wall usually costs somewhere between about $80 for a Wi-Fi-transparent in-wall box and $300 to $1,200 for a mesh system, with hard-wired Ethernet drops typically adding $100 to $250 each. The cheapest fix of all is free: decide where the router, modem and IR gear will live before the MDF goes up, not after the first buffering movie night.
The full cost breakdown
Prices below are retail or published cost-guide figures, not quotes.
| Line item | Typical cost | What it solves |
|---|---|---|
| Moving the router out of the wall (layout change) | $0 if planned before build | Wi-Fi loss from enclosure |
| Wi-Fi-transparent in-wall box (SANUS 17-inch) | $79.99 to $89.99 | Hides streaming stick, switch or small router behind TV |
| Plastic-door structured media enclosure (Leviton WSMC) | Varies by size | Central wiring panel that does not block Wi-Fi |
| IR repeater kit (e.g. Sewell BlastIR Wireless Pro) | About $60 | Cable/satellite box hidden behind doors |
| RF or Bluetooth remote (often included with the player) | $0 to small upgrade | Streaming box out of sight |
| New standalone router | $100 to $500 | Old router too weak to push through panels |
| Mesh Wi-Fi system | $300 to $1,200 | Whole-home coverage when the main router stays boxed in |
| MoCA 2.5 adapter 2-pack (TRENDnet TMO-312C2K) | About $140 | Wired backhaul over existing coax |
| Ethernet drop, professionally installed | $100 to $250 per drop | Wired connection for TV, console, mesh node |
| Wi-Fi setup labor | $50 to $100 per hour, 1 to 3 hours | Configuring mesh, channels, devices |
| Drywall patching after retrofit cabling | $200 to $500 | Repairs from fishing cable later |
Estimated cost: Most media wall owners who plan ahead spend under $200 on signal fixes. Those who retrofit after the wall is finished commonly land in the $500 to $1,500 range once Ethernet, mesh and patching are added up.
Cost driver 1: What the router is boxed inside
The single biggest variable is the enclosure, and it costs you nothing to get right on paper. Linksys' own placement guidance warns that putting a router in a cabinet may look tidier, but enclosed spaces block and weaken the wireless signal, and thick materials such as metal absorb or reflect it. Virgin Media gives UK customers the same advice: their hubs work best out in the open, away from cabinets and TV sets.
That matters on a media wall: a router tucked directly behind the TV is fighting both the MDF box and a large metal-backed screen.
Leviton, which makes structured wiring panels for new homes, says it plainly: metal is the ultimate blocking material for Wi-Fi. That's why the company sells a Wireless Structured Media Center with a plastic door, plus a retrofit plastic door for its older metal panels.
Rule of thumb: Wood and MDF slow Wi-Fi down, metal stops it, and plastic or open slats barely touch it. If the router has to go in the wall, give it a plastic or perforated front, never a steel back box.
Pro tip: Keep the router as high as practical. Linksys recommends placing routers at least several feet off the floor. On a media wall, that makes an upper side cubby a much better spot than the floor-level cabinet beside an electric fire.
Cost driver 2: Which remotes you actually own
Remote problems are mostly an IR problem. Infrared is light, so it needs a clear line of sight, and a solid MDF door blocks it completely. Before buying anything, check what kind of remote each device uses:
- Roku: Roku's support pages say its simple remotes use IR and must be pointed at the player, while its voice remotes connect wirelessly and don't need line of sight. Roku specifically says this lets you put the player behind a wall-mounted TV or in another out-of-sight spot.
- Apple TV: Apple's Siri Remote talks to the box over Bluetooth, which isn't directional. Apple still says to stay within about 20 feet if the signal is weak, and the remote's IR volume control still needs a clear path to the TV, soundbar or receiver.
- Cable and satellite boxes: These are often the problem child. Many still rely on IR, so they need a repeater once the cabinet door closes.
Price range: $0 if your streaming device already ships with an RF or Bluetooth remote. Many homeowners find that the "remote problem" disappears once they move the streaming box behind the TV and use the remote that came with it.
Cost driver 3: IR repeaters, and why cheap kits frustrate people
An IR repeater has a small receiver eye that sits outside the wall where your remote can see it. It sends the signal down a wire to stick-on emitters placed over each hidden device's IR window. Kits like the Sewell BlastIR Wireless Pro list around $60, and US retailers stock wired kits from Cmple, Ethereal and Monoprice.
AVForums threads show what goes wrong. One homeowner installed a budget receiver-plus-four-emitter kit behind the TV, and their Sky box became sluggish. The experienced members who replied pointed to three causes:
- The emitter was misaligned. The IR window on some boxes is "quite hard to find."
- Several emitters were firing at once, so the box received duplicate signals.
- The cheap USB power supply was underpowered.
Their advice was to upgrade to Xantech or Keene Electronics hardware, which they described as having no lag, and to cover any unused emitters with something solid. Tape alone isn't enough.
The repeater is only as good as the eye's line of sight. Put the receiver where every seat can see it, usually just below the TV or in the soundbar recess, not tucked inside a shelf.
Cost driver 4: Retrofitting wires after the wall is finished
Ethernet is the most reliable fix for a TV or console that keeps buffering. It's also where costs balloon if you wait. Network installers put per-drop costs at $100 to $250, including the jack and termination, with labor making up 60 to 70 percent of the bill. Cat6 cable itself is cheap at roughly $0.15 to $0.35 per foot.
The same source notes that new-construction runs save 30 to 40 percent on labor compared with retrofits, and that drywall patching can add $200 to $500. On a media wall, the equivalent of "new construction" is the stud or batten frame before the boards go on. Pulling a spare Cat6 line and a conduit at that stage costs a fraction of fishing cable later. Our in-wall cable concealment service page explains how installers route these runs.
If running new cable is impractical, MoCA adapters send Ethernet over the coax you probably already have at the TV location. A TRENDnet MoCA 2.5 two-pack lists at about $140.
Important: A router or streaming box inside the wall still needs power. Don't push a regular extension cord or power strip through the wall cavity. Use a recessed, code-compliant outlet or a listed in-wall power kit, installed by a licensed electrician where your jurisdiction requires it. See our guide to what the NEC allows for an outlet behind a TV.
Cost driver 5: Heat inside the cubby
Routers, modems and set-top boxes all make heat. UK Sky forum moderators have repeatedly warned that Sky Q boxes mounted behind TVs in media walls can overheat and fail without proper ventilation. Linksys makes the same point about routers in cabinets: trapped heat hurts performance and lifespan. A vented or slatted front does double duty here, letting both air and Wi-Fi through. We cover vent sizing in our console overheating guide.
Budget vs mid-range vs high-end
Price range: Budget, under $150. Plan the router into a high, open or slatted side cubby. Use the RF or Bluetooth remotes that came with your streaming devices. Add one IR repeater kit for a cable or satellite box. Best for single-floor homes where the router was already in the living room.
Price range: Mid-range, about $300 to $700. Use a Wi-Fi-transparent in-wall box behind the TV for the streaming device and a small switch. Leave the main router in a vented cubby, and add a mesh system starting around $300 so the bedrooms don't suffer. Add one or two pre-wired Ethernet drops during the build.
Price range: High-end, $1,000 and up. Move the modem and router out of the living room entirely to a plastic-door structured media panel elsewhere. Run Ethernet to the TV, console and every mesh node. Use a quality wired IR system or hub-based control for hidden AV gear, and pay for professional network setup. This makes sense for larger homes or a full home theater build.
Before you commit, sketch where each box goes in our media wall configurator. It's far cheaper to move a cubby on screen than in MDF.
Where to save (and where not to)
When to DIY: Swapping to an RF or Bluetooth remote, positioning and testing an IR repeater, setting up a consumer mesh kit, and plugging in MoCA adapters are all homeowner-friendly jobs. Always test Wi-Fi speed in the farthest bedroom with the cubby door closed before the wall gets its final paint.
When to DIY: Choosing the enclosure material is free and has the biggest effect. Specify slatted, perforated or plastic fronts for any cubby holding a router.
When NOT to DIY: Adding a recessed outlet or in-wall power behind the TV. That's electrical work and should go to a licensed electrician.
When NOT to DIY: Fishing Cat6 through finished walls when you aren't comfortable working around existing wiring and plumbing. A botched retrofit adds patching costs on top of the cabling bill.
Best for: Saving money overall, the winning move is giving your installer a device list at the quote stage: router, modem, cable box, console and streaming player. That way cubbies, vents and cable paths get built in from day one. When you compare local media wall installers, ask each one how they handle Wi-Fi and IR.
Cost FAQ
Can I put my router behind the TV on a media wall at all?
Yes, but expect weaker Wi-Fi unless the router is in a high, vented or plastic-fronted space and not right behind the TV panel. Router makers and ISPs both recommend open placement. If the router must be enclosed, budget for a mesh node elsewhere.
Is an IR repeater or a new remote cheaper?
A new remote usually is. Many streaming players already include RF or Bluetooth remotes that work through doors. Save the roughly $60 repeater kit for devices that only speak IR, like many cable and satellite boxes.
Should I pay for Ethernet during the build?
If the TV, console or a mesh node will live in the wall, yes. A drop pulled while the frame is open avoids the retrofit labor and patching costs that make later installs expensive. Answer a few questions to get matched with installers and free quotes that include it.
Sources
- Linksys: router placement guidance — Cabinets and enclosed spaces weaken Wi-Fi; metal absorbs or reflects signal; elevate the router
- Leviton: Wireless Structured Media Center blog — Metal enclosures block Wi-Fi; plastic WSMC door and retrofit door option
- Leviton 14-inch Wireless Structured Media Enclosure, plastic vented cover — Plastic structured media enclosure product
- Abt: SANUS 17-inch TV Media In-Wall Box (SA-IWB17-W1) — $79.99 sale / $89.99 regular price, Wi-Fi-transparent ABS plastic, fits behind wall-mounted TVs
- rAVe: SANUS releases TV Media In-Wall Boxes — Models, Wi-Fi-transparent material, compatible devices
- Roku Support: voice remote vs simple remote — IR simple remotes need line of sight; voice remotes allow out-of-sight placement
- Apple Support: If your Siri Remote isn't working — Bluetooth remote, 20-foot range advice, clear path to TV/soundbar
- Apple Support: Use Bluetooth accessories with your Apple TV — Bluetooth vs IR behavior of the Siri Remote
- AVForums: IR repeater help thread — Budget kit lag, misalignment, multiple emitters, Xantech/Keene recommendation
- AVForums: equipment placement thread — IR repeaters for hidden gear, universal remote alternatives
- Sewell BlastIR Wireless Pro retail listing — IR repeater kit priced about $60 (Walmart $59.98)
- HomeAdvisor: internet installation cost — Mesh $300 to $1,200, routers $100 to $500, Wi-Fi labor $50 to $100/hr for 1 to 3 hours
- The Network Installers: Ethernet installation cost — $100 to $250 per drop, Cat6 per-foot cost, labor share, retrofit savings, patching costs
- Network Camera Store: TRENDnet TMO-312C2K MoCA 2.5 2-pack — MoCA 2.5 adapter pair about $140
- Sky Community: Media Wall discussion — Sky Q boxes behind TVs in media walls need ventilation or can overheat
- Virgin Media Community: Hub Wi-Fi tips — Keep hubs in the open, away from cabinets and TV sets